/*
 * Copyright 2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.example.data.jdbc;

import java.util.Optional;
import java.util.concurrent.atomic.AtomicInteger;

import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.domain.AuditorAware;
import org.springframework.data.relational.core.mapping.event.BeforeConvertEvent;
import org.springframework.data.relational.core.mapping.event.BeforeSaveEvent;

@Configuration
public class DataJdbcConfiguration {

	final AtomicInteger id = new AtomicInteger(0);

	@Bean
	public AuditorAware<String> anonymousAuditorAware(){
		return () -> Optional.of("anonymous");
	}

	@Bean
	public ApplicationListener<?> idSetting() {

		return (ApplicationListener<BeforeConvertEvent>) event -> {

			if (event.getEntity() instanceof LegoSet) {
				setIds((LegoSet) event.getEntity());
			}
		};
	}

	private void setIds(LegoSet legoSet) {

		if (legoSet.getId() == 0) {
			legoSet.setId(id.incrementAndGet());
		}

		Manual manual = legoSet.getManual();

		if (manual != null) {
			manual.setId((long) legoSet.getId());
		}
	}
}
